Types of Angles

Types of Angles; Find the Missing Angle

Notes, Practice, Mastery!

supplementary angles

• Two angles that sum to 180 degree

• Angles do not need to share a ray or be connected

Examples of supplementary angles

adjacent vs. non-adjacent

Multiple Select

Select all supplementary angles

• a + b = 180

complementary angles

• Two angles that sum to 90 degrees

• Angles do not need to share a ray or be connected

Examples of complementary angles

adjacent vs. non-adjacent

Multiple Select

Select all complementary angles

• a + b = 90

vertical angles

• The pairs of opposite angles made by two intersecting lines

• Share a vertex but no common ray

• vertical angles are congruent (equal)

Examples of vetical angles

angles 2 and 4 are the vertical angles

Multiple Choice

What is the measure of the vertical angle labeled 1?

• 162 degrees

• 90 degrees

• 18 degrees

• there's not enough information given

Multiple Choice

What is the measure of the vertical angle labeled 2?

• 162 degrees

• 90 degrees

• 18 degrees

• there's not enough information given

adjacent angles

• Two angles that share a common ray and vertex

• When two lines intersect, adjacent angles form supplementary angles

Examples of adjacent angles

Multiple Select

Which of the following are adjacent angles? Select all that apply.

• 1 and 2

• 1 and 3

• 3 and 4

• 2 and 4

• 4 and 1

Fill in the Blanks

Find the missing angle: y

Fill in the Blanks

Find the missing angle: z

Fill in the Blanks

Find the missing angle: x

Fill in the Blanks

What is the value of x?

Fill in the Blanks

What is the value of y?

Multiple Select

Which statements are NOT true? Select all that apply

• angle 8 = 65 degrees

• angles 5 and 8 are complementary

• angles 5 and 7 are vertical angles

• angle 5 = 105 degrees

• angle 8 = 115 degrees